DS2156L+ Maxim Integrated Products, DS2156L+ Datasheet - Page 90
DS2156L+
Manufacturer Part Number
DS2156L+
Description
IC TXRX T1/E1/J1 1-CHIP 100-LQFP
Manufacturer
Maxim Integrated Products
Datasheet
1.DS2156L.pdf
(265 pages)
Specifications of DS2156L+
Function
Single-Chip Transceiver
Interface
E1, J1, T1, TDM, UTOPIA II
Number Of Circuits
1
Voltage - Supply
3.14 V ~ 3.47 V
Current - Supply
75mA
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
100-LQFP
Includes
BERT Generator and Detector, CMI Coder and Decoder, HDLC Controller
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power (watts)
-
- Current page: 90 of 265
- Download datasheet (2Mb)
15.
There are two methods to access receive signaling data and provide transmit signaling data, processor-
based (software-based) or hardware-based. Processor-based refers to access through the transmit and
receive signaling registers RS1–RS16 and TS1–TS16. Hardware-based refers to the TSIG and RSIG pins.
Both methods can be used simultaneously.
15.1 Receive Signaling
Figure 15-1. Simplified Diagram of Receive Signaling Path
15.1.1 Processor-Based Signaling
The robbed-bit signaling (T1) or TS16 CAS signaling (E1) is sampled in the receive data stream and
copied into the receive signaling registers, RS1–RS16. In T1 mode, only RS1–RS12 are used. The
signaling information in these registers is always updated on multiframe boundaries. This function is
always enabled.
15.1.1.1 Change-of-State
To avoid constant monitoring of the receive signaling registers, the DS2156 can be programmed to alert
the host when any specific channel or channels undergo a change of their signaling state.
RSCSE1–RSCSE4 for E1 and RSCSE1–RSCSE3 for T1 are used to select which channels can cause a
change-of-state indication. The change-of-state is indicated in status register 5 (SR1.5). If signaling
integration (CCR1.5) is enabled, then the new signaling state must be constant for three multiframes
before a change-of-state is indicated. The user can enable the INT pin to toggle low upon detection of a
change in signaling by setting the IMR1.5 bit. The signaling integration mode is global and cannot be
enabled on a channel-by-channel basis.
The user can identity which channels have undergone a signaling change-of-state by reading the
RSINFO1–RSINFO4 registers. The information from these registers inform the user which RSx register
to read for the new signaling data. All changes are indicated in the RSINFO1–RSINFO4 registers
regardless of the RSCSE1–RSCSE4 registers.
SIGNALING OPERATION
RECEIVE SIGNALING
CHANGE-OF-STATE
T1/E1 DATA STREAM
EXTRACTION
REGISTERS
SIGNALING
INDICATION
REGISTERS
ALL-ONES
90 of 265
REINSERTION
SIGNALING
CONTROL
BUFFERS
PER-CHANNEL
CONTROL
RSER
RSYNC
RSIG
Related parts for DS2156L+
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Ds2156, Ds2156l, Ds2156ln T1/e1/j1 Single-chip Transceiver Tdm/utopia Ii Interface
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
Part Number:
Description:
MAX7528KCWPMaxim Integrated Products [CMOS Dual 8-Bit Buffered Multiplying DACs]
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
Single +5V, fully integrated, 1.25Gbps laser diode driver.
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
Single +5V, fully integrated, 155Mbps laser diode driver.
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
VRD11/VRD10, K8 Rev F 2/3/4-Phase PWM Controllers with Integrated Dual MOSFET Drivers
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
Highly Integrated Level 2 SMBus Battery Chargers
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
Current Monitor and Accumulator with Integrated Sense Resistor; ; Temperature Range: -40°C to +85°C
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
TSSOP 14/A°/RS-485 Transceivers with Integrated 100O/120O Termination Resis
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
TSSOP 14/A°/RS-485 Transceivers with Integrated 100O/120O Termination Resis
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
QFN 16/A°/AC-DC and DC-DC Peak-Current-Mode Converters with Integrated Step
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
TDFN/A/65V, 1A, 600KHZ, SYNCHRONOUS STEP-DOWN REGULATOR WITH INTEGRATED SWI
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
Integrated Temperature Controller f
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
SOT23-6/I°/45MHz to 650MHz, Integrated IF VCOs with Differential Output
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
SOT23-6/I°/45MHz to 650MHz, Integrated IF VCOs with Differential Output
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
EVALUATION KIT/2.4GHZ TO 2.5GHZ 802.11G/B RF TRANSCEIVER WITH INTEGRATED PA
Manufacturer:
Maxim Integrated Products